The association between tryptophan levels and postpartum mood disorders: a systematic review and meta-analysis.

BMC Psychiatry · 2022 · PMC9361669 · PMID 35941560

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failed to reach significanceno p-value reported

The second study [ 59 ] ( n = 46) found that cases of PPD, diagnosed through EPDS screening then clinical interviews, had lower levels of free plasma TRP on day 63 postpartum, but failed to reach significance.

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